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light change

  1. A

    How far should the LED plant growth lamp be from the plant?

    Where should the growth lamp be placed? For seedlings, LED grow lights should usually be installed between 24-36 inches above the plant canopy-however, this depends on the power (wattage) of the light source. Place the LED planting light farthest away from the seedlings (~36 inches)-this keeps...
  2. D

    CFL or LED?

    Hi, this is the first time that i grow cannabis. I have three plants that are 4 weeks old and i want to put them into flowering stage soon. They are currently sitting under a 200 watt LED grow light. The grow light itself is pretty small and I don't know if it will be able to cover all the...
  3. J

    Beginner lighting

    I already own a 600w HPS dual and a 200w blue cfl, started using the cfl but the three seedling I started have all bent and one just fell over and died. I didn't have a reflector for the cfl which I have now ordered, but I'm considering buying another 200w and reflector. The tent is 1.2 x...
  4. E

    Upside down leaves!? *first grow*

    I'm about a week away from 12/12. My veg room has 3 lights, 2 x CFL 250w and 1 HPS 600w. Now the plants are older, every time I put one under the HPS its drooping and on one strain the leaves are actually turning around.. I'm worried as when I turn to 12/12 next week, all three bulbs will be...
  5. S

    How and when to switch from 600w MH to 600w HPS

    Ok guys, hit day 28 Veg yesterday (4 weeks for those too stoned to count :volcano-smiley:))...Not too far from making the flip and want a head start before it gets here. I am using a 600w MH for Veg and will switch to 600w HPS for flower. My question is, do I switch the bulb a week before 12/12...
  6. B

    Question about changing lighting schedule?

    I'm currently in the 3rd week of veg using an 18/6 lighting schedule and I'm nowhere near being ready to change to 12/12 yet. BUT.... I just realized that in another few days I will not be here to turn the lights off after their being on for the 18 hours. (a timer won't work with my...
  7. dmoney4201

    Light change question?

    i will be flowering starting next week...i just want to know when i should switch my lights to the soft white....i'm doing a CFL grow. someone told me that the first 2 weeks of flowering are closer to a vegative grow then flower, so leaving the 6500k would be better for the first 2 weeks of...
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